YouTube is currently the world's largest video search and video-sharing site owned by Google. Many millions of videos are added every day. You can find and play almost all kinds of videos and music you want on it, but YouTube does not allow users to download MP4 and MP3 for free, and it does not provide an interface for downloading MP3 & MP4 separately.
VTubeGo is a Powerful desktop YouTube converter, allows you to convert YouTube to MP4 & MP3 & Subtitles & lyrics, it has a super-fast converting speed, and an interface clear, with no ads, no plugins, and no download restrictions.